
Hands-on guide to spoofing browser fingerprints with curl
Old iron engaged in network data collection know that the website wind control system is now more and more refined. It's not enough to use proxy IPs.If your request header shows up, you'll be recognized as a bot in minutes.The first thing we need to do is to set the UA (user agent) parameter with curl. Today let's nag how to set UA (user agent) parameters with curl, with ipipgo's proxy service, the collection program camouflaged as if it were a real person's operation.
What the hell is UA?
Simply put, it's your web ID. For example, if you visit a website with Chrome, it will carry this markup by default:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36
If your curl request doesn't take this parameter, the server sees it:
curl/7.81.0
Isn't that like labeling your brain "I'm a robot"?
Practical curl parameter configuration
Straight to the dryer, copy and paste and it works:
curl -H "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36"
--proxy http://user:pass@gateway.ipipgo.com:9020
https://目标网站.com
Note two key points here:
| parameters | clarification |
|---|---|
| -H | Set the request header followed by the specific UA string |
| -proxy | Specify the address of the proxy server, here use ipipgo's residential proxy |
The Three Pitfalls of UA Configuration
1. Don't be lazy and use defaultsSome developers try to save time by writing "python-requests/2.28″, which immediately exposes the
2. Watch for version updates: Don't use a browser version number that's three years old, it's a fake at first glance
3. The right type of equipment for the right job: Mobile UA for mobile capture, desktop for PC
Better with ipipgo agent
It's not enough to change UA.Real IP addresses can betray you. Use ipipgo's Dynamic Residential Proxy to change the exit IP for a different region for each request. such as this to set up a random rotation:
curl -H "User-Agent: your UA"
--proxy http://user:pass@rotate.ipipgo.com:9030
https://目标网站.com
With this combination of punches, the website's wind control system simply can't tell if it's a real person or a program in action.
Frequently Asked Questions QA
Q: What should I do if I am still recognized even though I have set the UA correctly?
A: check other request header parameters (Accept-Language, Referer, etc.), it is recommended to use ipipgo's high stash of proxy packages, which comes with a request header cleaning function
Q: Do I need to maintain my own UA library?
A: ipipgo's Enterprise package offers a real-time updated UA database, so you don't have to toss it yourself!
Q: What should I do if my proxy IP often fails?
A: Choose a package with smart switching, like ipipgo's Platinum Edition which will automatically eliminate failed nodes and keep 99.9% available.
One last rant.Don't use free proxies!Those public proxy pools have long been blacked out by the site. ipipgo's exclusive proxy is a bit more expensive, but the success rate is definitely worth it. Now registered also send 10G traffic trial, enough to test.

